Thursday, February22, 2018 L-36.com


Marine Weather and Tides
North Key Largo, FL

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:48AMSunset 6:21PM Thursday February 22, 2018 9:28 PM EST (02:28 UTC) Moonrise 11:22AMMoonset 12:00AM Illumination 53% Phase: First Quarter Moon; Moon at 8 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
    EDIT      (on/off)   Help
AMZ630 Biscayne Bay- 349 Pm Est Thu Feb 22 2018
Tonight..East winds 10 to 15 knots. Bay waters a moderate chop. A slight chance of showers in the evening...then a chance of showers after midnight.
Friday..East winds 10 to 15 knots. Bay waters a moderate chop. A slight chance of showers.
Friday night..East winds 10 to 15 knots. Bay waters a moderate chop. A chance of showers.
Saturday..East southeast winds 10 to 15 knots. Bay waters a moderate chop. A chance of showers in the morning.
Saturday night..Southeast winds 10 to 15 knots. Bay waters a moderate chop. A slight chance of showers after midnight.
Sunday..Southeast winds around 10 knots. Bay waters a light chop. A chance of showers.
Sunday night..Southeast winds 5 to 10 knots. Bay waters a light chop.
Monday..Southeast winds 5 to 10 knots. Bay waters a light chop. A slight chance of showers.
Monday night..East southeast winds around 5 knots. Bay waters smooth. A slight chance of showers.
Tuesday..East winds 5 to 10 knots. Bay waters a light chop. A slight chance of showers.
AMZ600 Synopsis For Jupiter Inlet To Ocean Reef Fl Out To 60 Nm And For East Cape Sable To Bonita Beach Fl Out To 60 Nm- 349 Pm Est Thu Feb 22 2018
Synopsis..High pressure will continue to dominate the weather pattern across south florida waters. East to southeast winds will continue with wind speeds of 10 to 15 knots for the gulf and 15 to 20 knots for the atlantic. A few showers are possible over the atlantic waters through the period.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream as of feb 22, 2018 at 1200 utc... 11 nautical miles east of fowey rocks. 20 nautical miles east southeast of port everglades. 6 nautical miles east of lake worth. 6 nautical miles east southeast of jupiter inlet. This data courtesy of the naval oceanographic office.

7 Day Forecast for Marine Location Near North Key Largo CDP, FL
   Hourly   EDIT   Help
location: 25.31, -80.27     debug


Area Discussion for - Miami-South Florida, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kmfl 230012
afdmfl
area forecast discussion
national weather service miami fl
712 pm est Thu feb 22 2018

Update
Radar data still shows some lingering showers over the atlantic
coastal waters, streaming inland with the prevailing easterly
winds. Breezy periods are still possible through the rest of
tonight as broad sfc high pressure remains well anchored over the
western atlantic.

Nighttime lows should remain in the mid to upper 60s, warmer near
the coast. Current forecast package remains on track and no
significant changes are required for the evening update.

Prev discussion issued 324 pm est Thu feb 22 2018
discussion...

short term (tonight-Saturday)... The overall weather pattern won't
change much during the short term as a persisting mid-upper level
ridge remains in place. At the sfc, high pressure sprawls across
the western atlantic and keeps mainly easterly flow over south
florida for the next couple of days. Pressure gradients are
expected to remain tight enough to keep bringing breezy periods
through Friday afternoon, then weakening on Saturday.

This synoptic scenario will keep generally stable conditions
through the weekend, however, 12z mfl sounding depicts enough low
level moisture filtering into the area for a few passing showers
to develop each day. But any shower that forms should remain
shallow and brief as subsidence from the aforementioned ridge
will continue to suppress significant vertical development.

The dominant ridge will also continue to support the warm trend of
this february with afternoon highs hovering the mid 80s and
morning lows in the mid-upper 60s.

Models show a disturbance moving near the florida keys through
tonight, but the significant moisture associated with this
feature should remain south of the area.

Long term (Saturday night-Wednesday)... Models show fair agreement
in pushing a trough low complex across the eastern us Sunday and
into early next week, with an associated frontal boundary reaching
the NE gulf and north florida by Monday. This feature should
stall north of the area and gradually dissipate through mid week
without bringing any significant impacts across south florida. But
it could briefly weaken the ridge and veer winds to a more sse
flow on Sunday and Monday, although overall wind speeds will
remain weak enough to allow for afternoon sea breezes to develop
each day.

The warm trend continues next week with afternoon highs remaining
in the mid 80s and morning lows in the mid-upper 60s across much
of south florida.

Marine... High pressure continues to dominate the weather pattern
with breezy east to southeast winds through the weekend. A few
showers are possible over the atlantic waters through the weekend.

Beach forecast... Breezy easterly flow will keep a high risk of
rip currents at atlantic beaches through the remainder of the
week.

Aviation...

east wind 10 to 15 kt during the days (with some higher gusts) and
5 to 10 kt overnight will continue through the period. Sct bkn
3-4kft CIGS will prevail, with a few periods of MVFR-level clouds
expected. Isolated, brief showers are possible, but should have
minimal impacts.

Preliminary point temps pops
West palm beach 71 81 70 81 40 30 40 30
fort lauderdale 73 80 72 80 50 30 50 30
miami 72 81 71 81 40 20 40 30
naples 67 85 66 84 10 20 10 10

Mfl watches warnings advisories
Fl... High rip current risk through Friday evening for flz168-172-173.

Am... None.

Gm... None.

Update... 17 ar


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HCEF1 - Highway Creek, FL 10 mi148 min 79°F
LSNF1 - Long Sound, FL 11 mi88 min 79°F
LBSF1 - Little Blackwater, FL 11 mi148 min 78°F
BWSF1 - Blackwater Sound, FL 13 mi148 min 79°F
DKKF1 - Duck Key, FL 15 mi148 min 77°F
BNKF1 - Butternut Key, FL 20 mi88 min 78°F
MLRF1 - Molasses Reef, FL 21 mi28 min E 20 G 22 76°F 77°F1026 hPa (+0.6)
TRRF1 - Taylor River, FL 21 mi88 min 81°F
LMDF1 - Little Madeira, FL 21 mi88 min 79°F
FWYF1 - Fowey Rocks, FL 21 mi28 min E 22 G 24 76°F 76°F1027 hPa (+0.4)
TBYF1 26 mi88 min 80°F
BOBF1 - Bob Allen, FL 29 mi88 min 79°F
VAKF1 - 8723214 - Virginia Key, FL 30 mi46 min ENE 13 G 18 77°F 77°F1025.8 hPa
WRBF1 - Whipray Basin, FL 30 mi148 min NNE 15 82°F
GBTF1 - Garfield Bight, FL 30 mi88 min 80°F
LRIF1 33 mi88 min 80°F
BKYF1 33 mi88 min 78°F
NRRF1 34 mi88 min 78°F
WWEF1 36 mi148 min 79°F
CANF1 - Cane Patch, FL 36 mi148 min 77°F
PKYF1 - Peterson Key, FL 37 mi88 min 78°F
TPEF1 - Tarpon Bay East, FL 37 mi148 min 79°F
LRKF1 - Little Rabbit Key, FL 37 mi148 min 78°F
JKYF1 - Johnson Key, FL 38 mi148 min 81°F
CWAF1 39 mi148 min 80°F
BDVF1 - Broad River, FL 40 mi88 min 79°F
GBIF1 - Gunboat Island, FL 41 mi88 min 78°F
HREF1 43 mi88 min 77°F
SREF1 44 mi88 min 78°F
WIWF1 - Willy Willy, FL 45 mi88 min 79°F
LONF1 - Long Key, FL 45 mi88 min E 16 76°F 69°F

Wind History for Virginia Key, FL
(wind in knots)    EDIT      (on/off)   Help
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last
24hr
NE18
NE17
E17
G21
E16
G22
E15
G22
E16
G21
E15
G19
NE15
G19
NE12
G19
NE14
G18
NE15
G19
NE15
G19
NE14
G21
E14
G19
E15
E15
G19
NE13
G17
NE13
G17
NE10
G15
NE13
G16
NE12
G15
NE11
G14
NE13
G16
NE12
G16
1 day
ago
E16
G21
E16
E17
G21
E17
G21
E13
G17
E15
G21
E13
G19
E15
G20
E14
G19
E15
G19
E16
G20
E15
E13
G18
E13
G17
E13
G16
E14
G17
NE14
G17
E14
G18
NE15
G19
NE13
G17
E16
NE16
NE15
G19
E17
2 days
ago
E19
E18
G23
E17
G22
E16
G20
E17
G21
E16
G21
E20
E16
G21
E14
G20
E17
G21
E16
G20
E15
E13
G17
E11
G16
E13
G17
E12
G17
E11
G14
E12
G15
E11
E12
G15
E13
G17
E13
E14
G19
E14
G18

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Homestead Air Reserve Base, FL13 mi32 minENE 1210.00 miA Few Clouds75°F67°F76%1026.4 hPa

Wind History from HST (wind in knots)
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
Last 24hrE11E11E13
G20
E13E11E9E9E9E10E9NE11E12E13E15
G19
E15
G21
E12
G19
NE14NE12E10NE9NE9NE9NE14NE12
1 day agoE14
G18
E12E14
G20
E14
G19
E13
G21
E11E13E9E10E10E13
G18
E9
G20
E13
G20
E14
G18
E15
G19
E14E17
G25
E13
G21
E15
G21
E13E10E9E13
G18
E15
G20
2 days agoE14
G23
E9E13
G23
E10E12E11
G22
E10
G17
E14
G20
E13
G18
E13E10E11
G19
E12E10E9E14E10
G17
E12E12E12
G17
E10E10E10E12

Tide / Current Tables for Ocean Reef Harbor, Key Largo, Florida
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Ocean Reef Harbor
Click for Map
Thu -- 12:50 AM EST     2.16 feet High Tide
Thu -- 06:50 AM EST     Sunrise
Thu -- 06:55 AM EST     0.12 feet Low Tide
Thu -- 11:22 AM EST     Moonrise
Thu -- 12:58 PM EST     2.08 feet High Tide
Thu -- 06:19 PM EST     Sunset
Thu -- 07:25 PM EST     -0.38 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.12.221.61.10.60.20.10.30.71.21.722.121.610.4-0.1-0.4-0.300.61.2

Tide / Current Tables for Caesar Creek, Biscayne Bay, Florida Current
   EDIT      (on/off)   Help   One Week of Data
Caesar Creek
Click for Map
Thu -- 02:42 AM EST     -0.00 knots Slack
Thu -- 05:43 AM EST     -1.48 knots Max Ebb
Thu -- 06:50 AM EST     Sunrise
Thu -- 09:18 AM EST     0.00 knots Slack
Thu -- 11:21 AM EST     Moonrise
Thu -- 11:32 AM EST     0.80 knots Max Flood
Thu -- 02:11 PM EST     -0.00 knots Slack
Thu -- 06:03 PM EST     -1.90 knots Max Ebb
Thu -- 06:18 PM EST     Sunset
Thu -- 09:53 PM EST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.20.80.4-0.2-0.9-1.4-1.5-1.2-0.7-0.20.40.70.80.50.1-0.4-1.1-1.7-1.9-1.7-1.3-0.60.10.7

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Miami-South Florida, FL (21,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Miami, FL
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.